Speaker/OPT question

[Tubes&Mosfets]

Originally Posted by natedogg643

I have an old Zenith floor stander (5r337) that I'm trying to bring back to life. The speaker cone is shot. It has a transformer bolted onto it. Am I assuming correctly that this is the output transformer? It's a basic looking 5" speaker, and the schematic I have references part number 49-238-5". Can I replace it with any 5" full range speaker? Or should I try to refabricate the cone? Or should I look for an old speaker somewhere? Thanks,

Nate

You are right in your assumption.

Many options available. You can have the speaker reconed (or DIY) for about 35$ (you decide if the radio is worth that much to you). You can also replace the speaker with a run-of-the-mill 4 ohms speaker (yes, 4 ohms). keep the original output transformer if you are replacing the speaker.

Do not use a foam surround speaker, try to buy a car speaker with a paper surround. The impedance and "stiffness" will be right. I find them locally in electronics surplus store for a few bucks. If you are replacing the speaker, keep the original in a safe palce just in case you wish to have it reconed to keep originality or wish to sell the radio.

Z-